S550 Development of the Toronto Upper Gastrointestinal Cleaning Score: A Delphi Study. (October 2021) - Khan, Rishad; Gimpaya, Nikko; Vargas Dominguez, Jose Ignacio; Amin, Sunil; Bilal, Mohammad; Bollipo, Steven; Charabaty, Aline; De-Madaria, Enrique; Hashim, Almoutaz; Kral, Jan; Pawlak, Katarzyna; Sandhu, Dalbir S.; et al.